No-Bake S'mores Tart (GF)

I have always associated S'mores with campfires and bonfire night, toasting marshmallows over an open fire, sandwiched between biscuits and chocolate.  So I decided to turn this delicious dessert into a No-Bake tart, with a cinnamon biscuit base, filled with a chocolate ganache, and topped with toasted marshmallows, grilled until they are charred and gooey!

The tart is big enough to serve 8 - 12, depending on how big you want your slices to be!  Serve with some cream or ice cream - you won't regret it!